IMA mineral species

Graeserite

Fe³⁺₄Ti₃As³⁺O₁₃(OH)

Oxide mineral.

Graeserite specimen
Graeserite.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaFe³⁺₄Ti₃As³⁺O₁₃(OH)
ElementsFe, Ti, As, O, H
Crystal system—
Mohs hardness—
Density—
Streak—
Color—
IMA symbolGsr
Nickel–Strunz class4.JB.55

“—” means no reliable value in Wikidata yet. Check Mindat for full data.

🌍 Where it's found

Type locality (where it was first described): Binn valley, Switzerland

  • Type locality
  • Notable source / deposit
  • Country of origin

Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.